28774720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6917}}^1$

素因数の和:6947

約数の個数: 56

約数和(自身を含む): 73801224

約数和(自身を除く): 45026504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 6917, 13834, 27668, 34585, 55336, 69170, 89921, 110672, 138340, 179842, 221344, 276680, 359684, 442688, 449605, 553360, 719368, 899210, 1106720, 1438736, 1798420, 2213440, 2877472, 3596840, 5754944, 7193680, 14387360, 28774720]

約数ペア:

[(1, 28774720), (2, 14387360), (4, 7193680), (5, 5754944), (8, 3596840), (10, 2877472), (13, 2213440), (16, 1798420), (20, 1438736), (26, 1106720), (32, 899210), (40, 719368), (52, 553360), (64, 449605), (65, 442688), (80, 359684), (104, 276680), (130, 221344), (160, 179842), (208, 138340), (260, 110672), (320, 89921), (416, 69170), (520, 55336), (832, 34585), (1040, 27668), (2080, 13834), (4160, 6917)]